Alfred Nobel had four brothers: Robert, Ludvig, Emil, and Alfred.
Alfred Nobel had three younger brothers: Ludvig Nobel, Robert Nobel, and Emil Oskar Nobel. He did not have a sister.
Ludvig Norman died in 1885.
Ludvig Oppermann died in 1883.
Ludvig Dam died in 1972.
Ludvig Bergh died in 1924.
Ludvig Puusepp died in 1942.
Ludvig Eikaas died in 2010.
Ludvig Ellefsrød died in 1983.
Ludvig Douglas died in 1916.
Ludvig Grundtvig died in 1901.
Ludvig Meyer died in 1938.